Publication 1762-RM001C-EN-P
System Status File C-5
Fault Override At Power-Up
When set (1), causes the controller to clear the Major Error Halted bit (S:1/
13) at power-up. The power-up mode is determined by the controller
mode switch (MicroLogix 1500 only) and the Power-Up Mode Behavior
Selection bit (S:1/12).
See also: FO - Fault Override on page 3-7.
Startup Protection Fault
When set (1) and the controller powers up in the RUN or REM RUN
mode, the controller executes the User Fault Routine prior to the
execution of the first scan of your program. You have the option of
clearing the Major Error Halted bit (S:1/13) to resume operation. If the
User Fault Routine does not clear bit S:1/13, the controller faults and does
not enter an executing mode. Program the User Fault Routine logic
accordingly.
Load Memory Module On Error Or Default Program
For this option to work, you must set (1) this bit in the control program
before downloading the program to a memory module. When this bit it
set in the memory module and power is applied, the controller
downloads the memory module program when the control program is
corrupt or a default program exists in the controller
.
The mode of the controller after the transfer takes place is determined by
the controller mode switch (MicroLogix 1500 only) and the Power-Up
Mode Behavior Selection bit (S:1/12).
See also: LE - Load on Error on pa ge3-8.
Address Data Format Range Type User Program Access
S:1/8 binary 0 or 1 control read only
Address Data Format Range Type User Program Access
S:1/9 binary 0 or 1 control read only
NOTE
When executing the startup protection fault routine, S:6
(major error fault code) contains the value 0016H.
Address Data Format Range Type User Program Access
S:1/10 binary 0 or 1 control read only
NOTE
If you clear the controller memory, the controller loads
the default program.
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